** Changed in: linux (Ubuntu Oneiric)
Status: Confirmed = Invalid
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Title:
[Patch] The resolution of Display Port for intel cards is
Unfortunately the backport for Oneiric had to be reverted, it caused an
regression (bug 919350). Reopening the Oneiric task, fix was reverted in
linux 3.0.0-16.28
** Changed in: linux (Ubuntu Oneiric)
Status: Fix Released = Confirmed
** Changed in: linux (Ubuntu Oneiric)
Assignee:
This bug was fixed in the package linux - 3.0.0-15.25
---
linux (3.0.0-15.25) oneiric-proposed; urgency=low
[Brad Figg]
* Release Tracking Bug
- LP: #910894
[ Upstream Kernel Changes ]
* Revert clockevents: Set noop handler in clockevents_exchange_device()
- LP:
** Branch linked: lp:ubuntu/oneiric-proposed/linux-ti-omap4
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Title:
[Patch] The resolution of Display Port for intel cards is limited
To manage
This bug is awaiting verification that the kernel for Oneiric in
-proposed solves the problem (3.0.0-15.24). Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-oneiric' to 'verification-done-oneiric'.
If verification is not
Verfied
** Tags removed: verification-needed-oneiric
** Tags added: verification-done-oneiric
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Title:
[Patch] The resolution of Display Port for
To be honest i went a much cruder way that is just
static int
intel_dp_link_required(struct intel_dp *intel_dp, int pixel_clock)
{
struct drm_crtc *crtc = intel_dp-base.base.crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int bpp = 24;
return (pixel_clock * bpp + 9) /
The if condition is different, because the code changed upstream to
calculate bpp better for all pipes on = ironlake.
But my backport was wrong, as pixel_clock * 3 == (pixel_clock * 24) / 8,
so it wouldn't work for external monitors I expect, only for embedded
display port configurations. Which
** Patch added: 0001-drm-i915-dp-Fix-the-math-in-intel_dp_link_required.patch
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/899598/+attachment/2623284/+files/0001-drm-i915-dp-Fix-the-math-in-intel_dp_link_required.patch
** Patch removed:
** Also affects: linux (Ubuntu Precise)
Importance: Medium
Assignee: Herton R. Krzesinski (herton)
Status: Fix Released
** Changed in: linux (Ubuntu Oneiric)
Status: Incomplete = Fix Committed
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** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Status: Confirmed = Triaged
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Title:
[Patch]
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Herton R. Krzesinski (herton)
** Description changed:
+ SRU Justification
+
+ Impact
+ Unable to achieve some resolutions through display port because of
+ driver miscalculation, or sub-optimal number of links x data rate
+ chosen.
+
@Albert: please check the patch, is the backport the same you have done
for a 3.0.0 kernel? Also does the SRU description matches your issue,
what hardware/resolution are you using and is giving problems?
If everything is ok I'll submit this to the kernel-team mailing list for
inclusion.
**
** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
[Patch] The resolution of Display Port for intel cards is limited
To manage
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